考点题例统计与现实生活密切相关,其基本思想是用样本估计总体,即用局部推断整体,这就要求样本具有良好的客观代表性,而这又完全依赖于抽样方法.因此,对抽样方法的考查是近几年各省市高考命题的热点. The statistics of test cases are closely related to real life. The basic idea is to use a sample to estimate the population, that is to use local inference to the whole, which requires the sample to have a good objective representation, and this completely depends on the sampling method. Therefore, the sampling method The examination is the hot spot of the propositions of college entrance examinations in various provinces and cities in recent years.